[Monitor] Add DataCollRules section readme.go.md (#11707)

Author: herreraj-ms

specification/monitor/resource-manager/readme.go.md

@@ -19,6 +19,7 @@ batch:
   - tag: package-2018-11-preview
   - tag: package-2019-03
   - tag: package-2019-06
+  - tag: package-2019-11-01-preview-only
   - tag: package-2020-03
 ```
 
@@ -76,6 +77,15 @@ Please also specify `--go-sdk-folder=<path to the root directory of your azure-s
 output-folder: $(go-sdk-folder)/services/preview/monitor/mgmt/2019-06-01/$(namespace)
 ```
 
+### Tag: package-2019-11-01-preview-only and go
+
+These settings apply only when `--tag=package-2019-11-01-preview-only --go` is specified on the command line.
+Please also specify `--go-sdk-folder=<path to the root directory of your azure-sdk-for-go clone>`.
+
+``` yaml $(tag) == 'package-2019-11-01-preview-only' && $(go)
+output-folder: $(go-sdk-folder)/services/preview/monitor/mgmt/2019-11-01-preview/$(namespace)
+```
+
 ### Tag: package-2020-03 and go
 
 These settings apply only when `--tag=package-2020-03 --go` is specified on the command line.